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/******************************************************************************
* The MIT License (MIT)
*
* Copyright (c) 2020-2022 Baldur Karlsson
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
#include "d3d12_test.h"
RD_TEST(D3D12_Shader_Linkage_Zoo, D3D12GraphicsTest)
{
static constexpr const char *Description =
"Tests various shader linkage scenarios to ensure proper handling of data between shader "
"stages.";
enum class VarType : uint32_t
{
Float = 0,
UInt = 1,
Count = 2,
};
const std::string varTypeName[(uint32_t)VarType::Count] = {"float", "uint"};
struct ShaderLinkageEntry
{
bool nointerp;
VarType type;
uint32_t components;
uint32_t arraySize;
std::string semantic;
bool consumedByPS;
};
std::string BuildStruct(const std::vector<ShaderLinkageEntry> &outputs)
{
std::string structDef = R"EOSHADER(
struct v2f
{
float4 pos : SV_POSITION;
)EOSHADER";
for(size_t i = 0; i < outputs.size(); ++i)
{
structDef += " ";
if(outputs[i].nointerp)
structDef += "nointerpolation ";
structDef += varTypeName[(uint32_t)outputs[i].type];
structDef += std::to_string(outputs[i].components);
structDef += " ";
structDef += "element" + std::to_string(i);
if(outputs[i].arraySize != 0)
structDef += "[" + std::to_string(outputs[i].arraySize) + "]";
structDef += " : " + outputs[i].semantic + ";\n";
}
structDef += "};";
return structDef;
}
std::string BuildVS(const std::vector<ShaderLinkageEntry> &outputs)
{
std::string vs = R"EOSHADER(
struct vertin
{
float3 pos : POSITION;
float4 col : COLOR0;
float2 uv : TEXCOORD0;
};
)EOSHADER";
vs += BuildStruct(outputs);
vs += R"EOSHADER(
v2f main(vertin IN, uint vid : SV_VertexID)
{
v2f OUT = (v2f)0;
OUT.pos = float4(IN.pos, 1.0f);
)EOSHADER";
float counterFloat = 0.0f;
uint32_t counterUInt = 0;
for(size_t i = 0; i < outputs.size(); ++i)
{
uint32_t count = std::max(1U, outputs[i].arraySize);
for(uint32_t j = 0; j < count; ++j)
{
vs += " OUT.element" + std::to_string(i);
if(outputs[i].arraySize != 0)
vs += "[" + std::to_string(j) + "]";
vs += " = ";
vs += varTypeName[(uint32_t)outputs[i].type];
vs += std::to_string(outputs[i].components);
vs += "(";
for(uint32_t k = 0; k < outputs[i].components; ++k)
{
if(k != 0)
vs += ", ";
vs += std::to_string(outputs[i].type == VarType::Float ? counterFloat++ : counterUInt++);
}
vs += ");\n";
}
}
vs += "\n return OUT;\n}\n";
return vs;
}
std::string BuildPS(const std::vector<ShaderLinkageEntry> &inputs)
{
std::string ps = BuildStruct(inputs);
ps += R"EOSHADER(
float4 main(v2f IN) : SV_Target0
{
float4 outF = float4(0.0f, 0.0f, 0.0f, 0.0f);
uint4 outU = uint4(0, 0, 0, 0);
)EOSHADER";
const std::string varAccess[] = {" outF", " outU"};
const std::string componentAccess[] = {".x", ".xy", ".xyz", ".xyzw"};
for(size_t i = 0; i < inputs.size(); ++i)
{
if(inputs[i].consumedByPS)
{
if(inputs[i].arraySize == 0)
{
ps += varAccess[(uint32_t)inputs[i].type];
ps += componentAccess[inputs[i].components - 1];
ps += " += IN.element" + std::to_string(i) + ";\n";
}
else
{
// Access each element
for(uint32_t j = 0; j < inputs[i].arraySize; ++j)
{
ps += varAccess[(uint32_t)inputs[i].type];
ps += componentAccess[inputs[i].components - 1];
ps += " += IN.element" + std::to_string(i);
ps += "[" + std::to_string(j) + "];\n";
}
}
}
}
ps += "\n return outF + (float4)outU;\n}\n";
return ps;
}
ID3D12PipelineStatePtr BuildPSO(ID3D12RootSignaturePtr rootSig,
const std::vector<ShaderLinkageEntry> &elements)
{
ID3DBlobPtr vsblob = Compile(BuildVS(elements), "main", "vs_5_0");
ID3DBlobPtr psblob = Compile(BuildPS(elements), "main", "ps_5_0");
ID3D12PipelineStatePtr pso = MakePSO().RootSig(rootSig).InputLayout().VS(vsblob).PS(psblob).RTVs(
{DXGI_FORMAT_R32G32B32A32_FLOAT});
return pso;
}
int main()
{
// initialise, create window, create device, etc
if(!Init())
return 3;
ID3D12ResourcePtr vb = MakeBuffer().Data(DefaultTri);
ResourceBarrier(vb, D3D12_RESOURCE_STATE_COMMON, D3D12_RESOURCE_STATE_VERTEX_AND_CONSTANT_BUFFER);
ID3D12ResourcePtr rtvtex = MakeTexture(DXGI_FORMAT_R32G32B32A32_FLOAT, screenWidth, screenHeight)
.RTV()
.InitialState(D3D12_RESOURCE_STATE_RENDER_TARGET);
ID3D12RootSignaturePtr sig = MakeSig({});
std::vector<ID3D12PipelineStatePtr> psos;
// No additional semantics
psos.push_back(BuildPSO(sig, {}));
// A single semantic of various types, interpolation modes, and components
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 1, 0, "TEXCOORD0", true}}));
psos.push_back(BuildPSO(sig, {{true, VarType::Float, 1, 0, "TEXCOORD0", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 4, 0, "TEXCOORD0", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 4, 0, "TEXCOORD0", false}}));
psos.push_back(BuildPSO(sig, {{false, VarType::UInt, 1, 0, "TEXCOORD0", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::UInt, 4, 0, "TEXCOORD0", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::UInt, 4, 0, "TEXCOORD0", false}}));
psos.push_back(BuildPSO(sig, {{true, VarType::UInt, 4, 0, "TEXCOORD0", true}}));
// A single semantic with various array sizes
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 1, 1, "TEXCOORD0", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 1, 2, "TEXCOORD0", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 1, 5, "TEXCOORD0", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::UInt, 1, 1, "TEXCOORD0", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::UInt, 1, 2, "TEXCOORD0", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::UInt, 1, 5, "TEXCOORD0", true}}));
// Multiple semantics that pack together
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 2, 0, "TEXCOORD0", true},
{false, VarType::Float, 2, 0, "TEXCOORD1", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::UInt, 2, 0, "TEXCOORD0", true},
{false, VarType::UInt, 2, 0, "TEXCOORD1", true}}));
psos.push_back(BuildPSO(sig, {{true, VarType::Float, 2, 0, "TEXCOORD0", true},
{true, VarType::Float, 2, 0, "TEXCOORD1", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 3, 0, "TEXCOORD0", true},
{false, VarType::Float, 1, 0, "TEXCOORD1", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 1, 0, "TEXCOORD0", true},
{false, VarType::Float, 3, 0, "TEXCOORD1", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 1, 0, "TEXCOORD0", true},
{false, VarType::Float, 2, 0, "TEXCOORD1", true},
{false, VarType::Float, 1, 0, "TEXCOORD2", true}}));
// These pack into v1.x, v2.xy, and v1.y
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 1, 0, "TEXCOORD0", true},
{false, VarType::UInt, 2, 0, "TEXCOORD1", true},
{false, VarType::Float, 1, 0, "TEXCOORD2", true}}));
// Multiple semantics that don't pack together
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 3, 0, "TEXCOORD0", true},
{false, VarType::Float, 2, 0, "TEXCOORD1", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 2, 0, "TEXCOORD0", true},
{false, VarType::Float, 3, 0, "TEXCOORD1", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 4, 0, "TEXCOORD0", true},
{false, VarType::Float, 1, 0, "TEXCOORD1", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 1, 0, "TEXCOORD0", true},
{false, VarType::Float, 4, 0, "TEXCOORD1", true}}));
// Multiple semantics that will pack together "out of order" thanks to FXC's rules
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 2, 0, "TEXCOORD0", true},
{false, VarType::Float, 3, 0, "TEXCOORD1", true},
{false, VarType::Float, 2, 0, "TEXCOORD2", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 2, 1, "TEXCOORD0", true},
{false, VarType::Float, 2, 1, "TEXCOORD1", true},
{false, VarType::Float, 3, 2, "TEXCOORD2", true},
{false, VarType::Float, 2, 0, "TEXCOORD4", true}}));
// Semantics that don't pack together due to being arrays
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 1, 2, "TEXCOORD0", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 2, 1, "TEXCOORD0", true},
{false, VarType::Float, 2, 1, "TEXCOORD1", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 2, 1, "TEXCOORD0", true},
{false, VarType::Float, 2, 0, "TEXCOORD1", true}}));
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 2, 0, "TEXCOORD0", true},
{false, VarType::Float, 2, 1, "TEXCOORD1", true}}));
// Tests focusing on different interpolation modes
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 2, 0, "TEXCOORD0", true},
{true, VarType::Float, 2, 0, "TEXCOORD1", true}}));
// These semantics are placed in v1.x and v1.y since they share interpolation modes and types
// (all int semantics are nointerpolation). Test that they don't get placed in v1.x and v2.x
psos.push_back(BuildPSO(sig, {{false, VarType::UInt, 1, 0, "TEXCOORD0", true},
{true, VarType::UInt, 1, 0, "TEXCOORD1", true}}));
// These semantics are placed in v1.x and v2.x since their interpolation modes differ. Test that
// they don't turn into an array[2] which would result in an erroneous interpolation mode for
// one semantic or the other
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 1, 0, "TEXCOORD0", true},
{false, VarType::UInt, 1, 0, "TEXCOORD1", true}}));
// These semantics are placed in v1.x and v1.y despite having different types since the
// interpolation mode is the same. Test that they don't turn into an array[2] which would place
// them in the wrong registers
psos.push_back(BuildPSO(sig, {{true, VarType::Float, 1, 0, "TEXCOORD0", true},
{false, VarType::UInt, 1, 0, "TEXCOORD1", true}}));
// Bespoke tests for broken scenarios discovered through bug reports:
// These semantics live in v1.xy, v2.x, and v3.xyz due to each being an array. If any of them
// are not treated as an array[1], they will incorrectly pack together with a previous semantic
psos.push_back(BuildPSO(sig, {{false, VarType::Float, 2, 1, "TEXCOORD0", true},
{false, VarType::Float, 1, 1, "TEXCOORD1", false},
{false, VarType::Float, 3, 1, "TEXCOORD2", true}}));
while(Running())
{
ID3D12GraphicsCommandListPtr cmd = GetCommandBuffer();
Reset(cmd);
ID3D12ResourcePtr bb = StartUsingBackbuffer(cmd, D3D12_RESOURCE_STATE_RENDER_TARGET);
D3D12_CPU_DESCRIPTOR_HANDLE bbrtv =
MakeRTV(bb).Format(DXGI_FORMAT_R8G8B8A8_UNORM_SRGB).CreateCPU(0);
D3D12_CPU_DESCRIPTOR_HANDLE offrtv = MakeRTV(rtvtex).CreateCPU(1);
OMSetRenderTargets(cmd, {offrtv}, {});
ClearRenderTargetView(cmd, bbrtv, {0.4f, 0.5f, 0.6f, 1.0f});
ClearRenderTargetView(cmd, offrtv, {0.4f, 0.5f, 0.6f, 1.0f});
cmd->IASetPrimitiveTopology(D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
IASetVertexBuffer(cmd, vb, sizeof(DefaultA2V), 0);
RSSetViewport(cmd, {0.0f, 0.0f, (float)screenWidth, (float)screenHeight, 0.0f, 1.0f});
RSSetScissorRect(cmd, {0, 0, screenWidth, screenHeight});
cmd->SetGraphicsRootSignature(sig);
cmd->SetDescriptorHeaps(1, &m_CBVUAVSRV.GetInterfacePtr());
for(size_t i = 0; i < psos.size(); ++i)
{
setMarker(cmd, "draw" + std::to_string(i));
cmd->SetPipelineState(psos[i]);
cmd->DrawInstanced(3, 1, 0, 0);
}
FinishUsingBackbuffer(cmd, D3D12_RESOURCE_STATE_RENDER_TARGET);
cmd->Close();
Submit({cmd});
Present();
}
return 0;
}
};
REGISTER_TEST();
|
